UPD70F3102-33 NEC [NEC], UPD70F3102-33 Datasheet - Page 56

• Manufacturer Part Number: UPD70F3102-33
• Description: 32-/16-BIT SINGLE-CHIP MICROCONTROLLER
• Manufacturer: NEC [NEC]

56
Row address setup time
Row address hold time
Column address setup time
Column address hold time
RAS precharge time
RAS hold time
Column address read time
(to RAS )
CAS to RAS precharge time
CAS hold time
Delay time from RAS to column
address
RAS to CAS delay time
CAS precharge time
RAS hold time for CAS precharge
WE hold time (from CAS )
Data hold time (from CAS )
WE read time (to
RAS )
WE read time (to
CAS )
WE pulse width
Write cycle time
RAS pulse width
CAS pulse width
WE setup time
(to CAS )
Data setup time
(to CAS )
Remarks 1. T = t
(f) Write timing (EDO DRAM) (1/2)
Parameter
2. w
3. w
4. w
5. w
RP
RH
DA
CP
: Number of waits specified by RPCxx bit of register DRCn (n = 0 to 3, xx = 00 to 03, 10 to 13)
: Number of waits specified by DACxx bit of register DRCn (n = 0 to 3, xx = 00 to 03, 10 to 13)
: Number of waits specified by CPCxx bit of register DRCn (n = 0 to 3, xx = 00 to 03, 10 to 13)
: Number of waits specified by RHCxx bit of register DRCn (n = 0 to 3, xx = 00 to 03, 10 to 13)
CYK
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Symbol
Preliminary Data Sheet U13844EJ2V0DS00
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
WCS1
WCS2
t
t
RHCP
RASP
HCAS
WCH
t
t
RAH
CAH
t
RSH
CRP
CSH
RAD
RCD
t
RWL
CWL
HPC
ASR
ASC
RAL
DS1
DS2
WP
RP
CP
DH
Conditions
w
w
w
w
CP
CP
CP
CP
= 0
= 0
= 0
1
(1.5 + w
(2.5 + w
(1.5 + w
(2 + w
(2 + w
(1 + w
(1 + w
(1.5 + tw
(0.5 + w
(0.5 + w
(0.5 + w
(0.5 + w
(1.5 + w
(0.5 + w
(0.5 + w
(0.5 + w
(0.5 + w
(0.5 + w
(0.5 + w
(1 + w
(1 + w
(1 + w
(1 + w
CP
CP
DA
RP
w
0.5T – 10
RH
RH
RP
CP
MIN.
+ w
+ w
+ w
+ w
RP
RH
DA
DA
T – 10
+ w
+ w
+ w
RP
DA
RP
DA
RH
CP
DA
DA
DA
CP
RH
DA
) T – 10
) T – 10
) T – 10
) T – 10
) T – 10
) T – 10
) T – 10
) T – 10
) T – 10
) T – 10
) T – 10
) T – 10
) T – 10
) T – 10
DA
DA
CP
RH
) T –10
) T – 10
RH
DA
DA
) T – 10
) T – 10
) T – 10
) T – 10
) T – 10
) T – 10
) T – 10
MAX.
PD70F3102-33
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns